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Nanocrack Formation in Hematite through the Dehydration of Goethite and the Carbon Infiltration from Biotar

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タイトル: Nanocrack Formation in Hematite through the Dehydration of Goethite and the Carbon Infiltration from Biotar
著者: Kashiwaya, Yoshiaki 著作を一覧する
Akiyama, Tomohiro 著作を一覧する
発行日: 2010年
出版者: Hindawi Publishing
誌名: Journal of Nanomaterials
巻: 2010
開始ページ: 235609
出版社 DOI: 10.1155/2010/235609
抄録: The cracks in nano-order are generated and propagated when the combined water is released during the dehydration. If the nanopore can be utilized for a reaction site, the overall reaction can be extremely accelerated. On the other hand, it is well known that woody biomass is an attractive alternative fuel for the reduction of CO2 emission. However, the process of biomass pyrolysis is disturbed by the tar which causes a clogging in gas tubing system. Hata et al. found that the tar was consumed almost 100% in the iron ore layer having nanocrack or nanopore. The nanocracks formed in hematite crystals after dehydration of goethite were about 4 nm in width, which is in excellent agreement with the result of BET measurement. When the carbon deposited from tar into the nanocracks, reduction reactions were occurred simultaneously. The deposited carbons completely infilled into the nanocracks and the void in the sample.
資料タイプ: article
URI: http://hdl.handle.net/2115/44165
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 秋山 友宏

 

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